CBSE · Class 7 · Science · Transportation in Animals and PlantsThe rhythmic contraction and relaxation of the heart muscles is called:
Step-by-Step Solution
The rhythmic contraction and relaxation of the heart muscles constitute a heartbeat. Every heartbeat generates one pulse in the arteries, and the pulse rate indicates how many times the heart beats per minute.
Detailed Options Breakdown
Option : Pulse rate
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Transportation in Animals and Plants.
Option 1: Heartbeat (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Blood pressure
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Transportation in Animals and Plants.
Option 3: Circulation
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Transportation in Animals and Plants.
💡 Study Guide: This question tests core syllabus concepts from Transportation in Animals and Plants. For formulas, key summaries, and mock exam reference guides, read the full Transportation in Animals and Plants Revision Notes.